Audio listening system



FIG. 1 is a rear perspective view of an audio listening system in accordance with the present invention;

FIG. 2 is a rear view of the embodiment of an audio listening system depicted in FIG. 1;

FIG. 3 is front view of the embodiment of an audio listening system depicted in FIG. 1;

FIG. 4 is a left side view of the embodiment of an audio listening system depicted in FIG. 1;

FIG. 5 is a right side view of the embodiment of an audio listening system depicted in FIG. 1; and,

FIG. 6 is a top view of the embodiment of an audio listening system depicted in FIG. 1.

The broken lines in the figures show portions of the audio listening system that form no part of the claimed design. 

CLAIM The ornamental design for an audio listening system, as shown and described. 